found to be effective in the control of FORL (McGovern and Datnoff, 1992). Other chemicals

include formulations containing methylisothiocyanate.

 Bacterial wilt is caused by Pseudomonas solanacearum and expresses symptoms such as

 dark discoloration near ground level. The plant appears to be stunted before signs of wilting and

 yellowing appear. Cultural practices for control of bacterial wilt include fumigation of land

 prior to installation of seedbeds or field planting. In order to reduce the spread of disease, it

 is recommended to avoid flooded conditions and avoid movement of tractors from infested fields

 to non-infested fields. It is also recommended not to plant in fields that have a history of disease

 problems.

 Table 4.3 contains a list of chemicals that can be used to control bacterial wilt. The

principal chemicals are chloropicrin, methyl bromide, and Vapam.



Table 4.3. Chemicals for the control of bacterial wilt.


 Common Name Trade Name
 Chloropicrin 96.5 Chlor-O-pic/Picfume
 Methyl Bromide 68 Brom-O-Sol/Brozone
 Methyl Bromide + Chloropicrin 67:32 MC-33/Terr-O-Gas 67
 Metam Sodium 32.7 Vapam/Fume V

 NOTE: For rate, use, and application to seed bed and field, refer to pp. 440-461 of the Florida
 Plant Disease Control Guide, 1993.



 Southern blight is caused by Sclerotium rolfsii and attacks the plant at or below ground

level by completely girdling the plant. This prevents movement of water or nutrients through